Pump for raising liquids by compressed air.



No. 723,744. PATENTED MAR. 24, 1903. 0. P. SIMON. PUMP FOR RAISING LIQUIDS BY COMPRESSED AIR.

APPLICATION FILED JULY 28. 1902.

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NITED STATES PATENT, OFFICE.

CARL FRIEDRICH SIMON, OF STOLLBERG, GERMANY, ASSIGNOR TO CHEM- ISCHE FABRIK RHENANIA, OF AACHEN, GERMANY.

PUMP FOR RAISING LIQUIDS BY COMPRESSEDAIR.

SPECIFICATION forming part of Letters Patent No, 723,744, dated March 24, 1903.

7 Application filed July 28, 1902 Serial No. 117,400. (No niodel.)

To all whom it may concern:

Be it known that I, CARL FRIEDRICH SIMON, a citizen of Germany, residing at Stollberg, Germany, have invented a certain new and 5 useful Pump for Raising Liquids by Com-- pressed Air, (for which I have made application for a patent in Germany, dated May 30, 1902,) of which the followingis a specification.

This invention relates to a pump for raising liquids by compressed air, as will be 'described with reference to the accompanying drawings, in which- Figure 1 shows the distributing-valve mechanism in vertical section. Fig. 2 is a trans [5 Verse section on line A B,Fig. l; and Fig. 3

is an elevation of the containers with its liquid and compressed-air connections broken away. A

The container a being empty, liquid flows 2o thereinto through the pipe I), which has a check-valve c. The air thus displaced escapes through the pipe d, past the valve'e,

and through the pipef. At the same time air is passing from the main compressed-air pipe it through the valve-casingh/and the pipe 9,

having a regulating-valve g, into the airchamber where thereis thus a pressure slowly created. Through the pipe is this pressure is communicated to the space Z behind the piston m.

While the container or is being filled container n is being emptied by the action of compressed air, and as soon as the level of the liquid in it is below the lowerend of pipe 0 the compressed airin the container escapes up this pipe and the pressure in 'n falls, thus removing the pressure on the one side of valve p and piston m, which sides are in communication with container 77., through pipes 40 q and r, respectively. The pressure in airchamber 8 also falls, for the latter is in communication with space 25, through pipe 20, and the pipe y, provided with regulating-valve y, is closed bythe valve k When this counter-pressure on the piston m has fallen to a certain value, the pressurein the space Zsuffices to move the piston, thus opening the valve pand closing the valve e. The same movement of the piston closes the pipe 0',

which conveys compressed air to the con- 5ov tainer n and opens the pipe w, which fulfils the samefunction for container (1. Thus the latter is put under pressure, while the pressure in container it falls to that of the atmosphere, and the check-valve 2 opens, admitting fresh liquid. In moving the piston m strikes the tappet h and moves the valve h to close the pipe 9 and open the pipe y. The air vessel sis now in communication with the compressed-air supply, and the pressure in it gradually rises. This pressure is communicated to the space 25 through pipe u, so that this end of the piston m is slowly put under pressure, the pipe 17 being closed. The pipe to being new open and the pipe gclosed, the air-chamber z' isin communication through space Z with the container a. As soon as container a is empty and the compressed air can escape up the pipe 0 the piston m is moved back and the cycle is repeated.

To avoid loss of air, the duration of filling should be somewhat shorter than that of emptying the container.

Having thus described the nature of this invention and the best meansI know of carrying the same into practical eifect, I claim 1. A pump for raising liquids by compressed air comprising .two liquidcontainers provided with liquid supply and delivery and air pressure pipes, two air-pressure reservoirs connected to a compressed-air supply, a cylinderand piston worked from thecompressedair supply, and valves operated by the said piston and adapted to alternately connect one air-reservoir with a liquid-container While disconnecting the other air-reservoir from the other liquid container, substantially as described.

2. In an apparatus for raising liquid by compressed air, a distributing-valve, a pair of c compressed air chambers communicating with receptacles containing the liquid to be raised and with a compressedair supply, means for directing a pressure of ,air against said valve to move it during the emptying of 5 one of the receptacles containing the liquid, thereby closing the communication between one of said chambers and one of the receptacles and to establish communication between my hand in presence of two subscribing witthe other of said receptacles and the other of nesses. said chambers, and an auxiliary valve operated by the movement of said distributing- CARL FRIEDRICH SIMON 5 valve for alternately connecting said cham- WVitnesses:

bers with the compressed-air supply. JOHN B. ADAMS,

In testimony whereof I have hereunto set HEINRICH RGSSING. 

